Hα emission line maps (left) and spectra (right) of the systems observed with OSIRIS (target name and redshift reported in the right panels). The line maps are oriented with north at the top and west to the right. The spectra shown in the right panels have been extracted over the squared apertures marked on the left panes (with the same color-coding). Each component of the systems is labeled as in Table 4. To optimize the visualization, some of the spectra have been multiplied by arbitrary factors, which are reported in the top left corner of the corresponding panels. The vertical dotted lines show the position of the main expected emission lines.